After humidity and the intensity and number of thunderstorms diminish into Friday, the weekend will bring a buildup of humidity and the risk of storms around Pittsburgh.
High temperatures are forecast to be in the low to middle 80s F Saturday and Sunday.
While there may be spotty thunderstorms developing on Saturday, Sunday is likely to turn out unsettled with the risk of multiple showers and thunderstorms.
One or more rounds of severe weather are possible in the Northeast as unseasonably cool air swings into the Midwest.
Some of that unseasonably cool air will reach Pittsburgh during the middle and latter part of next week.
Temperatures are projected to be no better than the 70s for multiple days next week around the city, during what is the typically the hottest time of the year. High temperatures average in the middle 80s during the middle of July.
In the mountains, nighttime temperatures could dip into the 40s with daytime highs in the 60s for a time later next week.
Ahead of an approaching storm system, unseasonable warmth will overspread much of the United Kingdom on Sunday and Monday.
With no exact details on where Malaysia Airlines Flight 370 went missing, Indian Ocean currents may have swept one piece of the complicated puzzle to shores on Reunion Island.
The Northwest is dealing with yet another record-challenging heat wave to close out July. While relief will come next week, this heat wave will not be the last of the summer.
Life-threatening heavy rainfall will continue to focus on northeastern India, Bangladesh and western Myanmar into Monday before a drier weather pattern sets in.
Heat and humidity remained in control over the much of the country during the last week of July.
The air felt like an exceptional 163 F in Bandar Mahshahr, Iran, on Friday and similar or worse conditions will follow.
La Crosse, WI (1992)
August temperature only 68.0 degrees for month; coolest since July 1891.
New York City, NY (1996)
No 90 degree reading in Central Park in all of June and July - the first time on record this has happened.
Kanata, Ontario, Canada (1996)
A severe thunderstorm downed electrical wires and trapped people in their cars and a bus for 1-2 hours. Amazingly, nobody was injured.